z86e63 ZiLOG Semiconductor, z86e63 Datasheet - Page 17

• Manufacturer Part Number: z86e63
• Description: Cmos Z8 16k/32k Eprom Microcontroller
• Manufacturer: ZiLOG Semiconductor

PS014401-1001
Port 1 can be placed in high-impedance state along with Port 0, AS, DS, and R/W,
allowing the MCU to share common resources in multiprocessor and DMA appli-
cations. Data transfers are controlled by assigning P33 as a Bus Acknowledge
input, and P34 as a Bus Request output (Figure 7).
Figure 6. Port 0 Configuration
OEN
Out
In
TTL Level Shifter
Z86E61
MCU
/E63
4
4
R = 500 k Ω
CMOS Z8 16K/32K EPROM Microcontroller
Handshake controls
Port 0 (I/O)
DAV0 and RDY0
(P32 and P35)
Auto Latch
PAD
Z86E61/E63
13